Schottky Barrier and Surface Plasmonic Resonance Phenomena Towards the Photocatalytic Reaction: Study of Their Mechanisms to Enhance Photocatalytic Activity
Metals are doped on semiconductors to enhance the activity of photocatalysts and two possible phenomena can happen at the interfaces of the semiconductors: Schottky barrier formation and Surface Plasmonic Resonance (SPR). Schottky barriers can improve the photoactivity of a reaction by trapping and...
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| Format: | Article |
| Language: | English English |
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Royal Society of Chemistry
2015
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| Online Access: | http://umpir.ump.edu.my/id/eprint/12608/ http://umpir.ump.edu.my/id/eprint/12608/1/Schottky%20barrier%20and%20surface%20plasmonic%20resonance%20phenomena%20towards%20the%20photocatalytic%20reaction.%20study%20of%20their%20mechanisms%20to%20enhance%20photocatalytic%20activity.pdf http://umpir.ump.edu.my/id/eprint/12608/7/Schottky%20barrier%20and%20surface%20plasmonic%20resonance%20phenomena%20towards%20the%20photocatalytic%20reaction.pdf |
| _version_ | 1848819278006976512 |
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| author | Khan, Maksudur R. Chuan, Tan Wooi Yousuf, Abu Chowdhury, M. N. K. Cheng, C. K. |
| author_facet | Khan, Maksudur R. Chuan, Tan Wooi Yousuf, Abu Chowdhury, M. N. K. Cheng, C. K. |
| author_sort | Khan, Maksudur R. |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Metals are doped on semiconductors to enhance the activity of photocatalysts and two possible phenomena can happen at the interfaces of the semiconductors: Schottky barrier formation and Surface Plasmonic Resonance (SPR). Schottky barriers can improve the photoactivity of a reaction by trapping and prolonging the life of the electron. While SPR has the ability to create an electromagnetic field which can improve the photoreaction in three ways: photon scattering, Plasmon Resonance Energy Transfer (PRET) and hot electron excitation. Although both phenomena have been well grounded throughout the field, one crucial ambiguity is still found based on the proposed mechanisms, specifically, what is the direction of electron flow – from metal to semiconductor or vice versa? This feature article reviews the mechanism focusing on how Schottky barrier and SPR phenomena help to improve a photoreaction, as well as the paradox between the Schottky barrier and SPR in the matter of the direction of electron flow in the metal/semiconductor system. |
| first_indexed | 2025-11-15T01:51:01Z |
| format | Article |
| id | ump-12608 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T01:51:01Z |
| publishDate | 2015 |
| publisher | Royal Society of Chemistry |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-126082017-11-16T06:26:04Z http://umpir.ump.edu.my/id/eprint/12608/ Schottky Barrier and Surface Plasmonic Resonance Phenomena Towards the Photocatalytic Reaction: Study of Their Mechanisms to Enhance Photocatalytic Activity Khan, Maksudur R. Chuan, Tan Wooi Yousuf, Abu Chowdhury, M. N. K. Cheng, C. K. QD Chemistry Metals are doped on semiconductors to enhance the activity of photocatalysts and two possible phenomena can happen at the interfaces of the semiconductors: Schottky barrier formation and Surface Plasmonic Resonance (SPR). Schottky barriers can improve the photoactivity of a reaction by trapping and prolonging the life of the electron. While SPR has the ability to create an electromagnetic field which can improve the photoreaction in three ways: photon scattering, Plasmon Resonance Energy Transfer (PRET) and hot electron excitation. Although both phenomena have been well grounded throughout the field, one crucial ambiguity is still found based on the proposed mechanisms, specifically, what is the direction of electron flow – from metal to semiconductor or vice versa? This feature article reviews the mechanism focusing on how Schottky barrier and SPR phenomena help to improve a photoreaction, as well as the paradox between the Schottky barrier and SPR in the matter of the direction of electron flow in the metal/semiconductor system. Royal Society of Chemistry 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12608/1/Schottky%20barrier%20and%20surface%20plasmonic%20resonance%20phenomena%20towards%20the%20photocatalytic%20reaction.%20study%20of%20their%20mechanisms%20to%20enhance%20photocatalytic%20activity.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/12608/7/Schottky%20barrier%20and%20surface%20plasmonic%20resonance%20phenomena%20towards%20the%20photocatalytic%20reaction.pdf Khan, Maksudur R. and Chuan, Tan Wooi and Yousuf, Abu and Chowdhury, M. N. K. and Cheng, C. K. (2015) Schottky Barrier and Surface Plasmonic Resonance Phenomena Towards the Photocatalytic Reaction: Study of Their Mechanisms to Enhance Photocatalytic Activity. Catalysis Science & Technology, 5 (5). pp. 2522-2531. ISSN 2044-4753. (Published) http://dx.doi.org/10.1039/C4CY01545B doi:10.1039/C4CY01545B |
| spellingShingle | QD Chemistry Khan, Maksudur R. Chuan, Tan Wooi Yousuf, Abu Chowdhury, M. N. K. Cheng, C. K. Schottky Barrier and Surface Plasmonic Resonance Phenomena Towards the Photocatalytic Reaction: Study of Their Mechanisms to Enhance Photocatalytic Activity |
| title | Schottky Barrier and Surface Plasmonic Resonance Phenomena Towards the Photocatalytic Reaction: Study of Their Mechanisms to Enhance Photocatalytic Activity |
| title_full | Schottky Barrier and Surface Plasmonic Resonance Phenomena Towards the Photocatalytic Reaction: Study of Their Mechanisms to Enhance Photocatalytic Activity |
| title_fullStr | Schottky Barrier and Surface Plasmonic Resonance Phenomena Towards the Photocatalytic Reaction: Study of Their Mechanisms to Enhance Photocatalytic Activity |
| title_full_unstemmed | Schottky Barrier and Surface Plasmonic Resonance Phenomena Towards the Photocatalytic Reaction: Study of Their Mechanisms to Enhance Photocatalytic Activity |
| title_short | Schottky Barrier and Surface Plasmonic Resonance Phenomena Towards the Photocatalytic Reaction: Study of Their Mechanisms to Enhance Photocatalytic Activity |
| title_sort | schottky barrier and surface plasmonic resonance phenomena towards the photocatalytic reaction: study of their mechanisms to enhance photocatalytic activity |
| topic | QD Chemistry |
| url | http://umpir.ump.edu.my/id/eprint/12608/ http://umpir.ump.edu.my/id/eprint/12608/ http://umpir.ump.edu.my/id/eprint/12608/ http://umpir.ump.edu.my/id/eprint/12608/1/Schottky%20barrier%20and%20surface%20plasmonic%20resonance%20phenomena%20towards%20the%20photocatalytic%20reaction.%20study%20of%20their%20mechanisms%20to%20enhance%20photocatalytic%20activity.pdf http://umpir.ump.edu.my/id/eprint/12608/7/Schottky%20barrier%20and%20surface%20plasmonic%20resonance%20phenomena%20towards%20the%20photocatalytic%20reaction.pdf |